package com.atguigu.gulimall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

@Configuration
public class GuliFeignConfig {
    @Bean("requestInterceptor")
public RequestInterceptor requestInterceptor(){
        return template -> {
            //System.out.println("feign远程之前先进行requestInterceptor.apply");
            //1. RequestContextHolder拿到刚进来的这个请求。
//            System.out.println("requestInterceptor进程："+Thread.currentThread().getName());
            ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();

            if (attributes !=null){
               HttpServletRequest request = attributes.getRequest();//老请求
                if (request != null) {
                    //同步请求头数据
                    String cookie = request.getHeader("cookie");
                    template.header("cookie",cookie);
                }

           }
        };

}
}
